Your body has been running the same biological code for tens of thousands of years — and most of what it's doing, you never notice.

Doodle Fysio breaks down human biology, evolution, and psychology through hand-drawn doodle animation. Every video takes something you experience every day — sore muscles, bad sleep, weird cravings, gut feelings — and traces it back to the ancient survival system still running underneath it.

No jargon without an explanation. No filler. Just the science, drawn simply, and shown for what it actually is: your body still trying to keep you alive.

New videos regularly. Subscribe if you want to understand yourself a little better.